WEAKLY COUPLED TUNABLE RF TRANSMITTER ARCHITECTURE
First Claim
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1. An apparatus comprising:
- a first tunable RF filter comprising a pair of weakly coupled resonators and configured to receive and filter a first upstream RF signal to provide a first filtered RF signal; and
an RF power amplifier (PA) coupled to the first tunable RF filter and configured to receive and amplify an RF input signal to provide an RF output signal.
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Abstract
RF communications circuitry, which includes a first tunable RF filter and an RF power amplifier (PA), is disclosed. The first tunable RF filter includes a pair of weakly coupled resonators, and receives and filters a first upstream RF signal to provide a first filtered RF signal. The RF PA is coupled to the first tunable RF filter, and receives and amplifies an RF input signal to provide an RF output signal.
40 Citations
30 Claims
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1. An apparatus comprising:
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a first tunable RF filter comprising a pair of weakly coupled resonators and configured to receive and filter a first upstream RF signal to provide a first filtered RF signal; and an RF power amplifier (PA) coupled to the first tunable RF filter and configured to receive and amplify an RF input signal to provide an RF output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification